EVALUATION OF THE ANTI - MOULTING ACTION OF TEFLUBENZURON (CME) ON SCHISTOCERCA GREGARIA (FORSK.)
EL-GAMMAL, A., GADULLA, A., AMER, M., METWALLY, M., ABDEL-KERIM, I. (1994). EVALUATION OF THE ANTI - MOULTING ACTION OF TEFLUBENZURON (CME) ON SCHISTOCERCA GREGARIA (FORSK.). EKB Journal Management System, 72(1), 147-154. doi: 10.21608/ejar.1994.444849
ABDEL-AZEM M. EL-GAMMAL; AHMED I. GADULLA; MONUR S. AMER; MONUR METWALLY; IBRAHIM ABDEL-KERIM. "EVALUATION OF THE ANTI - MOULTING ACTION OF TEFLUBENZURON (CME) ON SCHISTOCERCA GREGARIA (FORSK.)". EKB Journal Management System, 72, 1, 1994, 147-154. doi: 10.21608/ejar.1994.444849
EL-GAMMAL, A., GADULLA, A., AMER, M., METWALLY, M., ABDEL-KERIM, I. (1994). 'EVALUATION OF THE ANTI - MOULTING ACTION OF TEFLUBENZURON (CME) ON SCHISTOCERCA GREGARIA (FORSK.)', EKB Journal Management System, 72(1), pp. 147-154. doi: 10.21608/ejar.1994.444849
EL-GAMMAL, A., GADULLA, A., AMER, M., METWALLY, M., ABDEL-KERIM, I. EVALUATION OF THE ANTI - MOULTING ACTION OF TEFLUBENZURON (CME) ON SCHISTOCERCA GREGARIA (FORSK.). EKB Journal Management System, 1994; 72(1): 147-154. doi: 10.21608/ejar.1994.444849

EVALUATION OF THE ANTI - MOULTING ACTION OF TEFLUBENZURON (CME) ON SCHISTOCERCA GREGARIA (FORSK.)

Egyptian Journal of Agricultural Research
Article 15, Volume 72, Issue 1, March 1994, Page 147-154  XML PDF (1.67 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1994.444849
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Authors
ABDEL-AZEM M. EL-GAMMAL1; AHMED I. GADULLA2; MONUR S. AMER3; MONUR METWALLY2; IBRAHIM ABDEL-KERIM1
1Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt.
2Faculty of Agriculture, Al-Azhar University, Cairo, Giza, Egypt
3Faculty of Science, Al-Azhar University, Cairo, Giza, Egypt
Abstract
The anti - chitin synthesis action of the urea derivative com­pound, teflubenzuron ( CME) was tested against the last nymphal instars of Schistocerca gregaria by leaf dipping technique . Fresh leaves of Ses­bania aegyptiaca were dipped in different concentrations of 200, 100, 75, 50, 37.5 , 25, 18.7, 12.5 , 9.3, 4.6, and 2:3 ppm from CME then of­fered to 4th and 5th instar nymphs for one day. The treatments pro­longed the stage of the treated instars and a positive correlation be­tween concentrations and failure in ecdysis to the next instar was observed. The percentages of failure in ecdysis to 5th instar female ny­mphs ranged from 56.7 to 20 while were 73.3 to 43.3 during ecdysis to 5th instar male nymphs. Failure in ecdysis to adult females ranged from 90 to 46.7% while ranged from 53.3 to 13.3 % during ecdysis to adult males.
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